How to put a framed box around text + math environment

Question

I am looking for something like \fbox but it seems that you cannot use it when a math environment is included. However its not only a math environment (then you could use \boxed I know) but also text, I need to be in a frame.

example:

\rdmframeboxaroundwhatever{

blablabla

\begin{align}
Formula of the universe
\end{align}


Hoaray

}

Answer 1

You can also use tcolorbox:

Code:

\documentclass{article}
\usepackage{amsmath}
\usepackage{tcolorbox}
\begin{document}
\begin{tcolorbox}
blablabla
\begin{align}
E &= mc^2 & \text{Formula of the universe}
\end{align}
Hoaray
\end{tcolorbox}
\end{document}

Answer 2

You could take a look at mdframed, which also allows pagebreaks, and allows you to customize the look of the frame. A simple example, which puts a box similar to \fbox around the content.

\documentclass{article}
\usepackage{mdframed}
\usepackage{lipsum} % for creating dummy text

\begin{document}
\begin{mdframed}
\lipsum[1]
\begin{equation}
 f(x) = \sin(x)
\end{equation}
\lipsum[2]
\end{mdframed}
\end{document}

A second example, showing some more of what the package can do. See the manual for the full story.

\documentclass{article}
\usepackage[framemethod=TikZ]{mdframed}
\usepackage{lipsum}
\mdfdefinestyle{MyFrame}{%
    linecolor=blue,
    outerlinewidth=2pt,
    roundcorner=20pt,
    innertopmargin=\baselineskip,
    innerbottommargin=\baselineskip,
    innerrightmargin=20pt,
    innerleftmargin=20pt,
    backgroundcolor=gray!50!white}

\begin{document}

\begin{mdframed}[style=MyFrame]
\lipsum[1]
\begin{equation}
 f(x) = \sin(x)
\end{equation}
\lipsum[2]
\end{mdframed}
\end{document}

Answer 3

Wrap the math and text in a minipage, then put that in the fbox:

\documentclass{minimal}

\begin{document}
\fbox{%
\begin{minipage}{4 in}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed fringilla
purus bibendum odio ultricies non bibendum massa condimentum. Morbi
scelerisque pulvinar quam, sed porta ipsum blandit ac.
\begin{equation}
    \frac{Lorem}{Ipsum}=Do^2lr+\int_i^t\,d(amet)
\end{equation}
Sed felis arcu, pretium ut vulputate at, feugiat vitae orci. In hac
habitasse platea dictumst. Integer mollis vulputate dui. Fusce
eget sollicitudin purus.
\end{minipage}}
\end{document}

Answer 4

I'm actually a TeX noob, so use this with caution, but I saw an approach in this answer which makes the box tight, that is, it's exactly as wide and tall as the equation makes it be:

\documentclass[12pt]{article}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\pagestyle{empty}

\usepackage{collectbox}

\makeatletter
\newcommand{\mybox}{%
    \collectbox{%
        \setlength{\fboxsep}{1pt}%
        \fbox{\BOXCONTENT}%
    }%
}
\makeatother

\begin{document}
\mybox{$\left(\nabla_X Y\right)^k = X^i (\nabla_i Y)^k = X^i \left(\frac{\partial Y^k}{\partial x^i} + \Gamma^k{}_{im} Y^m\right)$}
\mybox{$\nabla_{\mathbf{u}_i}\mathbf{u}_j = \omega^k{}_{ij}\mathbf{u}_k$}
\end{document}

Output:

Answer 5

My combination of a frame box and math (trying to align the formula vertically as well as horizontally - give more space when the math gets really tall and allow more room horizontally for better visual effect):

\framebox{

\parbox[t][1.0cm]{4.50cm}{

\addvspace{0.2cm} \centering 

$ p \;=\; -\, \dfrac{17}{23}\;;\; \quad q \;=\; \dfrac{10}{23} $ 

} 

}\\

Answer 6

You can put the text in a \mbox and use \boxed. Example:

\begin{document}
$\boxed{\sin \theta \mbox{blablablablablabla}}$
\end{document}

This should produce a box around both sin theta and blablablablablabla. Hope this helps.

Answer 7

    \begin{document}
     \color{red}
      \begin{center}
        \framebox{


       \parbox[t][1.0cm]{4.50cm}{


       \color{blue}
       \begin{tabular}{c}
         \\
       $ E^2=p^2c^2+m_{0}c^4 $ 
       \end{tabular}

         } 

        }
       \end{center}

This does not use any packages and we have full freedom to play with it. \end{document}